Home / 646,133.43-891,747.81-370,598.76

Finding the Fourth Proportional to 646,133.43, 891,747.81 and 370,598.76

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Solution

The fourth proportional to 646,133.43, 891,747.81 and 370,598.76 is: 511,474.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,133.43 : 891,747.81 = 370,598.76 : x
  2. Step 2: Convert to fraction form
    646,133.43/891,747.81 = 370,598.76/x
  3. Step 3: Cross multiply
    646,133.43x = 891,747.81 × 370,598.76
  4. Step 4: Simplify right side
    646,133.43x = 330,480,632,618.72
  5. Step 5: Solve for x
    x = 330,480,632,618.72/646,133.43
  6. Step 6: Final answer
    x = 511,474.28

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.